Session Details
[3poster61-95]ジェネラルサブセッション海洋地質・地域地質・層序・堆積地質
Tue. Sep 16, 2025 1:30 PM - 3:00 PM JST
Tue. Sep 16, 2025 4:30 AM - 6:00 AM UTC
Tue. Sep 16, 2025 4:30 AM - 6:00 AM UTC
G_poster(General Edu. Build.C, 1-2F)
[G-P-17]Morphological and geological features of the Uotsuri seachannel in the southern part of the Okinawa Trough
*Ayanori Misawa1, Hiroaki Koge1, Ryuta Arai2, Michelle M. Nishimoto3, Akane Yamamoto4, Daisuke Kuwano5, Chika Onai6, Minoru Ikehara7, Makoto Otsubo1 (1. Geological Survey of Japan, AIST, 2. JAMSTEC, 3. University of Massachusetts Amherst, 4. University of Tsukuba, 5. Kyoto University, 6. Chiba University, 7. Marine Core Research Institute, Kochi University)
[G-P-18]Hybrid Dive Operations of the Manned Submersible Shinkai 6500 Combining Acoustic Survey System as Payload Instruments with Direct Observation and Sampling
*Koichi IIJIMA1, Junji KANEKO1 (1. JAMSTEC)
[G-P-19]A duplex structure and its implication in the Wakino subgroup at Yoshimo port Shimonoseki-city, Yamaguchi prefecture
*Kodai Kawaguchi1, Kiichiro Kawamura1 (1. Yamaguchi Univ.)
[G-P-20]Relationship Between Radiolarian Biostratigraphy and Climate Evolution in the Central Northwest Pacific Over the Past 10 Million Years (ODP Site 1208)
*Kenji Matsuzaki1, Shin-Ichi Kamikuri2 (1. Atmosphere and Ocean Research Institute, The University of Tokyo , 2. Faculty of Education, Ibaraki University)
[G-P-21]Overview of Pliocene to Early Pleistocene sedimentary rocks and siliceous microfossil assemblages obtained from the northern Ryukyu Arc
*Saki ISHINO1, Takuya ITAKI1, Jun ARIMOTO1, Osamu ISHIZUKA1, Yumiko HARIGANE1, Yuichiro TANAKA1 (1. Geological Survey of Japan, AIST)
[G-P-22]Relationship between the distribution of modern benthic foraminiferal assemblage and marine environment in Tanabe Bay, Japan
*Akira TSUJIMOTO1, Kanata KOBAYASHI1, Toshiaki IRIZUKI1 (1. Shimane Univ.)
[G-P-23]Spatial distribution of modern ostracode assemblages in the East China Sea
*Sota NAKATO1, Hokuto IWATANI1, Keita SAITO2, Yuuka TATERA2, Takuya ITAKI3 (1. Yamaguchi Univ., 2. JCG, 3. AIST)
[G-P-24]Distribution of Macroplastics (>5 mm) in Surface Sediments in the Northwestern Offshore Region of Kyushu
*Mutsumi Iizuka1, Atsuko Amano1, Takuya Itaki1, Yoshiaki Suzuki1, Koji Seike1 (1. The National Institute of Advanced Industrial Science and Technology (AIST))
[G-P-25]Integration and characteristics of bathymetric data around Okinotori Islands
*Seishiro Furuyama1, Eiishi Kikawa2, Naoki takatsuki2, Kazuo Nakahigashi1 (1. Tokyo University of Marine Science and Technology, 2. IDEA Consultants, Inc.)
[G-P-26]Changes of Gas Seepage Spots along Kujukuri Beach, Boso Peninsula, Japan
*Takeshi Yoshida1, Osamu Kazaoka1 (1. Chiba Prefectural Environmental Research Center)
[G-P-27]Importance of planktonic diatom fossils in the middle Miocene–lower Pliocene Idaho Group, USA
*Tatsuya HAYASHI1, Megumi SAITO-KATO2, Yuki HANEDA3, William KREBS (1. Kyushu University, 2. National Museum of Nature and Science, 3. National Institute of Advanced Industrial Science and Technology)
[G-P-28]Distribution and controlling factors of deep-sea benthic foraminifera around the axis of the southern Okinawa Trough
*Chika ONAI1, Koji KAMEO1, Daisuke KUWANO2, Makoto OTSUBO3, Masataka KINOSHITA4, KH-23-11 shipboard scientists (1. Chiba Univ., 2. Kyoto Univ., 3. Geological Survey of Japan, AIST, 4. ERI, The University of Tokyo)
[G-P-29]An assessment of the late Cenozoic planktonic foraminiferal biostratigraphy off Kii Peninsula, Northwest Pacific
*Kanako TAKAYAMA1, Hiroki HAYASHI2 (1. Graduate School of Natural Science and Technology, Shimane University(Master course), 2. Shimane University Interdisciplinary Faculty of Science and Engineering)
[G-P-30]Mollusks shells from the marine stratum of the Komatsushima Municipal Grand Site: Paleoenvironments and AMS 14C ages.
*Ken-ichi NAKAO1, Ken-ichi NISHIYAMA2 (1. Tokushima Prefectural Museum, 2. Faculty of Science and Technology Tokushima University)
[G-P-31]Applicability of optically stimulated luminescence dating of last interglacial marine terrace deposits-A case study from the outcrop at Hikiusu, Nemuro City, Hokkaido, Japan-
*Ryo Hayashizaki Hayashizaki1, Kotaro Aiyama1, Eiji Nakata1 (1. Central Research Institute of Electric Power Industry)
[G-P-32]Depths of terraces in northern basin of Lake Biwa, central Japan
*Yasufumi SATOGUCHI1 (1. Lake Biwa Museum)
[G-P-33]Modal composition of sandstone clasts from the Plio-Pleistocene Kanzawa Formation, Nakatsu Group, in the central part of Kanagawa Prefecture, central Japan
*Kiyokazu KAWAJIRI1 (1. Sagamihara City Museum)
[G-P-34]Mapping of lithology and alteration zones during mountain tunnel construction: A survey in the Pliocene-Pleistocene hydrothermal-altered volcanic area
*Aren KANAZAWA1, Shuro YOSHIKAWA1, Ryohei HASE2, Ryoichi ASAUMI3, Ken-ichi ADACHI3 (1. Institute of Technology, Shimizu Corporation, 2. Civil Engineering Headquarters, Shimizu Corporation, 3. Kyusyu Branch, Shimizu Corporation)
[G-P-35]Paleomagnetic directions and intensities determined from the Aso-2/1 lavas: Application to constraining stratigraphic relationships and temporal intervals
*Nobutatsu MOCHIZUKI1, Miu HOKAMA1, Yuki ONISHI1, Satoko ISHIMARU1 (1. Kumamoto University)
[G-P-36]Magnetostratigraphy of the Upper Cretaceous Hiraiso Formation, Nakaminato Group in Hitachinaka City, Ibaraki Prefecture
*Aoto SATO1, Makoto OKADA1 (1. Ibaraki University)
[G-P-37]Sedimentary facies and U-Pb age of detrital zircon of Toshima Conglomerates distributing in the Shirahama town, Wakayama Prefecture, Japan
*Takanori Bessho1, Toshiya Yamamoto2, Tetsuya Ogura3, Seisuke Ushiro4 (1. Osaka Museum of Natural History, 2. Tanabe High School, 3. Osaka City Board of Education, 4. Wakayama Univ.)
[G-P-38]1:100,000 Geological Map of Tokushima Prefecture and surrounding area
*Akihiro MURATA1 (1. Nita Consultant Co., Ltd.)
[G-P-39]High-resolution chronostratigraphy of the Miocene Onnagawa Formation by zircon U–Pb dating in the Yashima Area, Akita Prefecture, and implications for paleoceanographic changes in the Sea of Japan
*Takeshi NAKAJIMA1, Hideki IWANO2,3, Tohru DANHARA2, Takafumi HIRATA3, Kenta ASAHINA1 (1. AIST, 2. Kyoto Fission Track Co. LTD., 3. University of Tokyo)
[G-P-40]Paleoceanography and calcareous microfossil assemblage during the Miocene Climatic Optimum in the Hojuji Formation, Suzu City, Ishikawa Prefecture, Japan
*Satoshi IIJIMA1, Hiroki HAYASHI2, Arisa SEKI3, Jumpei YOSHIOKA4, Katsura YAMADA5 (1. JAPAN CONSERVATION ENGINEERS&CO.,LTD., 2. Shimane University, 3. Fukada Geological Institute, 4. National Institute of Polar Research, 5. Shinshu University)
[G-P-41]Characteristics and Origin of Muddy Injectites in the Miocene Koura Formation・Josoji Formation, Shimane Prefecture, SW Japan
*Mizuki Hatano1, Tetsuya Sakai1, Yoshikazu Sampei1 (1. Shimane University)
[G-P-42]Pliocene stratigraphy in the Hamasaka area, SW Japan
*Toshiki HAJI1, Takashi KUDO1 (1. Geological Survey of Japan, AIST)
[G-P-43]Geology and geochronology of Paleogene igneous rocks in the Hamasaka area, SW Japan
*Daisuke SATO1, Toshiki HAJI1, Sota NIKI2, Takafumi HIRATA3 (1. GSJ, AIST, 2. Nagoya Univ., 3. Univ. Tokyo)
[G-P-44]Lithostratigraphy and detrital zircon U-Pb ages of the Permian Oguratani Formation in the Wasadani area of the Hida Gaien belt, Ohno City, Fukui Prefecture, Southwest Japan
Riku TADA2,3, Keisuke SUZUKI4, *Toshiyuki KURIHARA1 (1. Faculty of Science, Niigata University, Niigata, Japan, 2. Graduate School of Science and Technology, Niigata University, Niigata, Japan, 3. Obayashi Corporation, Tokyo, Japan, 4. Geological Survey of Japan, Research Institute of Geology and Geoinformation, AIST, Tsukuba, Japan)
[G-P-45]Zircon U–Pb ages of Early Cretaceous intrusive rocks in the eastern Rikuchu-Ohara district, Northeast Japan
*Keisuke SUZUKI1 (1. Research Institute of Geology and Geoinformation, Geological Survey of Japan, AIST, Tsukuba, Japan)
[G-P-46]Results of the geological survey of the Onnebetsu Formation, Yezo Group in the Onnebetsu, Shibetsu City, Hokkaido (Preliminary report)
*Koh KUBOMI1, Atsufumi NARITA1, Takafumi ENYA1, Tetsuya HOMBE2, Kazuhiko MIZUTA2 (1. Hokkaido Museum, 2. Shibetsu City Museum)
[G-P-47]Temporal changes of ostracoda assemblages in Lützow-Holm Bay, East Antarctica
*Masataka NAKASATO1, Hokuto IWATANI1, Koichi TOKOHIRA1, Hiroki MATSUI2, Yuki TOKUDA3, Naoto JIMI4, Satoshi SASAKI5, Takeshige ISHIWA6, Masakazu FUJII6, Yoshiaki SUZUKI7, Takuya ITAKI7, Yusuke SUGANUMA6 (1. Yamaguchi Univ., 2. Akita Univ., 3. TUES, 4. Nagoya Univ., 5. Gunma Univ., 6. NIPR, 7. AIST)
[G-P-48]Sedimentary processes around the Kuroshio domain off the Amami-Oshima Island based on the foraminifera in the surface sediment
*Makoto YAMASAKI1, Yuzuki FUJISAWA2, Shogo AOKI1, Shiro HASEGAWA3, Atsuko AMANO4 (1. Akita Univ., 2. ENEOS Globe Corporation, 3. Tohoku Univ. Mus., 4. AIST)
[G-P-49]Spatial characteristics and its meanings of the grain-size distribution in the surface sediments around the northern East China Sea based on the statistical analysis
*Keita Saito1 (1. JCG)
[G-P-50]Spatial and temporal variations of depositional process during the Holocene based on grain size and element properties in Kiisuido Strait, Southwest Japan
*Atsuko AMANO1, Koji SEIKE1 (1. National Institute of Advanced Industrial Science and Technology)
[G-P-51]Sedimentological and geochemical characteristics of seismogenic event deposits in the outer rise of the Japan Trench
*Yang ZHAO1, Rina FUKUCHI2, Asuka YAMAGUCHI1 (1. Atmosphere and Ocean Research Institute, The University of Tokyo, 2. Naruto University of Education)